LASCO 52T Forged Crankset 170mm Forged Arms CNC Aluminum Chain Guard Ebikes BikeThis 52T front chain ring 3/32" crank set by Lasco comes with stronger forged arms and CNC aluminum chain gear and chainguard. These are compatible with 130BCD chain gears. This set includes everything you need to upgrade or replace on your existing bike. Crank arms are..